[Client] sells pump systems that need to deliver liquids at precise concentrations. Mixing was [done by hand / controlled by an off-the-shelf unit that could not do X]. They had no in-house developers and needed both the control hardware and the software that drives it.
What we shipped
Control hardware for dosing and mixing, [board / platform].
Control software that reads [sensor inputs] and drives the pumps to hit a target concentration.
[Operator UI: touch panel / web dashboard / mobile app] for setting recipes and watching the live state.
[Logging / telemetry / remote access, if any].
What it changed
[Outcome with a number: concentration accuracy, time saved per batch, number of units shipped, how long it has been running.]
[Photo of the real unit]
Tech: .NET on [Raspberry Pi / industrial PC], [protocol], Blazor UI.